Shingle-machine



IVM. lilltlilATlilUl, OF LANCASTER, PENNSYLVANIA.

SHINGLE-IVIACHINE.

Specification of Letters Patent No. 28,846, dated May 3, 1859i.

To all whom it 'mail concern:

Be it known that I, IVILLIAM KIRKPAT- RICK, of the city of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented a new and valuable Improvement in A. V. B. Orrs Shingle-Machine, patented July 8, 1856; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of my improvement consists in attaching to Orrs reciprocating plate an additional plate, with a second roller and shaving knife so as to have both sides of the shingle finished after the piece has been split from the bolt, thus securing a perfect finish of both sides of the shingle, which is not the case in Orrs machine, and also in so 4arranging the ends of the pieces to which the frow, is fastened that it shall be able to accommodate itself to twisty timber without injuring its connections with the plate.

To enable others skilled in the art to make and use my improvement I will proceed to describe its construction and operation.

Figure l of the accompanying drawings represents a perspective view of my improvement. Fig. 2 a transverse section, and Fig. 3 an end view of the frow attachment all the letters in the several figures referring to the same parts.

To a reciprocating plate A, A1, Fig. l working in slides by means of a tongue b, on its lower surface having two faces A, and A1, parallel to each other, with an offset 29, between them the face A1, being the thickness of the piece required to be split from the bolt, lower than the other; I attach another plate A2. This second plate is attached to one side of the first plate with a space as seen at e, between them, as this last plate is for the purpose of giving the piece the necessary taper it only runs one half the length of the first plate and its face is placed at an angle with the plane of its reciprocation equal to the taper necessary in the shingle, as in the second face of Orrs plate. This face is moveable so as to give any desired taper required, it has also an offset as seen at p2, to carry the piece placed upon it under the roller and knife. Spanning those two reciprocating plates and attached to the wooden frame of the machine, is a cast iron frame G, G, to this frame is affixed the rollers C, C, knives and dogs or catches. The

rollers C, C, are secured in a wrought iron piece D, D, which slides up and down in grooves in the .cast iron frame G, one of which grooves for each roller is formed in the center piece 7L, 7L, of said frame, one end of the wrought iron piece D, for holding the rollers passes downward, through the wooden frame as seen at (Z, and is attached to the spring S, by means of which any desirable pressure may be given to the rollers, thus securing` the whole in a single frame, adding strength, compactness, and simplicity to the machine and by the peculiar arrangement of the iron frame G, G, in spanning the wooden frame of the machine firmly bracing the whole together.

Attached to t-he upper part of the piece D, D, for holding the roller on the splitting side of the machine, is the guide piece 0, c, c, c, this guide piece is so arranged in front of the roller that it always secures the entrance of the piece split from the bolt under the roller however twisty such piece may be. A limited reciprocal rotation is allowed to the ends of the pieces a, a, to which the frow B, is attached by the arrangement seen in Fig. 3. A rod connected with the reciprocating plate and running longitudinally with it on its under side passes through the hole O. of the piece g, g, which moves on said rod the distance the frow is required t-o slide backward and forward, the ends of this piece g, g, pass through the perpendicw lar portions of the pieces a, a, below the plate permitting the frow to move as on a pivot perpendicularly, while the movement of the piece g, g, on the rod permits the frow to accommodate itself to the twist of the timber. The thickness of the piece split from t-he bolt is regulated by means of two set screws Z, Z, Fig. l upon which it rests.

From the foregoing description of my improvement it will be observed that when the reciprocating plate is put in motion the frow accommodating itself to character of the timber, splits off a' piece from the bolt during the forward motion of the plate, as in Orrs machine this piece is dropped on the face A1, with its end against the offset p, the motion of the plate is now reversed and in its backward movement the piece directed by the guide c, 0, c, c, passes under the roller and knife, and as this face of the plate is parallel with the plane of its motion the piece comes out of one thickness with the upper surface perfectly smooth. The

piece is now placed with the smooth side down on the added plate A2, with its end against the ot'set p2, and during the next backward movement of the plate is carried under the second roller and knife and comes out finished having the required taper given to the other side, by the divergence of the face of' the plate from the plane of motion.

I Wish it to be understood that I make no claim to any of the devices embraced in A. V. B. Orrs patent of July 8th, 1856, as originating With me but Vhat I do claim as my invention and Wish to secure by Letters Patent, is-

l. I claim the added plate A2, constructed as described and when acting in combina-f IVM. KIRKPATRIGK.

litnesses JOI-IN L. VRIGI-rr, ADRIAN V. B. Olm. 

